CVE-2021-30983
Apple iOS and iPadOS Buffer Overflow Vulnerability
Published Aug 24, 2021 · updated Jun 16, 2026 · apple ipados
A buffer overflow issue was addressed with improved memory handling. This issue is fixed in iOS 15.2 and iPadOS 15.2. An application may be able to execute arbitrary code with kernel privileges.
Timeline
Detection, updates, and resolution for this record.
Aug 24, 2021 · Catalog
Detected
A buffer overflow issue was addressed with improved memory handling. This issue is fixed in iOS 15.2 and iPadOS 15.2. An application may be able to execute arbitrary code with kernel privileges.
Jun 27, 2022 · CISA KEV
Known exploited
Apply updates per vendor instructions.
Jul 18, 2022 · CISA KEV
Remediation due
Apply updates per vendor instructions.
Jun 16, 2026 · Catalog
Updated
A buffer overflow issue was addressed with improved memory handling. This issue is fixed in iOS 15.2 and iPadOS 15.2. An application may be able to execute arbitrary code with kernel privileges.
Required action
Apply updates per vendor instructions.
CISA due date Jul 18, 2022
Affected
- cpe apple/ipadosversion unspecified
- cpe apple/iphone osversion unspecified
- vendor Apple iOS and iPadOSversion unspecified
Sources
- CISA KEVCVE-2021-30983
Apple iOS and iPadOS contain a buffer overflow vulnerability that could allow an application to execute code with kernel privileges.
cisa.gov - CVE.orgCVE-2021-30983
Official CVE identifier
cve.org - FIRST EPSSCVE-2021-30983
30-day exploitation probability 2.9%
first.org - NIST NVDCVE-2021-30983
A buffer overflow issue was addressed with improved memory handling. This issue is fixed in iOS 15.2 and iPadOS 15.2. An application may be able to execute arbitrary code with kernel privileges.
nvd.nist.gov